Home / 170,136,286.30-255,204,429.45-83,915,998.30

Finding the Fourth Proportional to 170,136,286.30, 255,204,429.45 and 83,915,998.30

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Solution

The fourth proportional to 170,136,286.30, 255,204,429.45 and 83,915,998.30 is: 125,873,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,136,286.30 : 255,204,429.45 = 83,915,998.30 : x
  2. Step 2: Convert to fraction form
    170,136,286.30/255,204,429.45 = 83,915,998.30/x
  3. Step 3: Cross multiply
    170,136,286.30x = 255,204,429.45 × 83,915,998.30
  4. Step 4: Simplify right side
    170,136,286.30x = 21,415,734,467,878,668
  5. Step 5: Solve for x
    x = 21,415,734,467,878,668/170,136,286.30
  6. Step 6: Final answer
    x = 125,873,997.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.